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There seem to be 3 major discoveries about particles that year. The first is neutrino oscillation is </span>demonstrated. Next, supernovae observations suggest that the expansion of the universe is accelerating. Time reversal asymmetry is observed for K meson decay
<span>48.4%
For this problem, you don't even need to look up the atomic weights. Just simply determine how many percent of 7.28 is 3.52? So do the division.
3.52 / 7.28 = 0.483516484 = 48.3516484%
And of course, round the result to 3 significant figures since that's how many significant figures we have in our data, so we get 48.4%</span>
The mass number is equal to the number of protons plus the number of neutrons. From the periodic table, we can see that chromium has an atomic number of 24, which means its nucleus contains 24 protons. ... Therefore, the chromium-52 isotope contains 28 neutrons in its nucleus.
0.08 in the state of Pennsylvania. I imagine it is the same in all of the states though.
Answer:
matter is anything that occupies space
states of matter : solid,liquid, gas,plasma